Abstract: A print head for an ink jet printer includes at least one ink supply channel and at least one nozzle having a nozzle channel and an inflow opening, and ink can be pressed from the ink supply channel through the inflow opening into the nozzle channel and ejected therefrom, wherein the nozzle is arranged in a stationary manner on a side wall of the ink supply channel and in the ink supply channel a ram is provided, which can be moved back and forth between a reversal point that has a minimal distance from the inflow opening of the nozzle and a reversal point that has a maximal distance from the inflow opening of the nozzle, wherein a first limiting device limits the movement of a ram end face to a movement between the reversal points; and a second external device is provided for applying a negative pressure relative to the ambient air pressure to the ink in the ink supply channel.

Abstract: A liquid discharging head includes a recording element board in which a plurality of discharge ports configured to discharge liquid are arrayed in a first direction, a support member configured to support the recording element board and including a common liquid chamber extending in the first direction to supply the liquid to the plurality of discharge ports and a buffer chamber configured to have an opening in a ceiling surface of the common liquid chamber opposed to the recording element board and to hold a bubble, and a heater located in a region of the recording element board opposed to a part of the ceiling surface extending from the opening of the buffer chamber to an end portion in the first direction and configured to generate heat when the liquid is not discharged from the plurality of discharge ports.

Abstract: A break-proof assembly for wires of a temperature control switch of a heated clothing is revealed. Several first wires are extended from a switch body of the temperature control switch of the heated clothing and connected to second wires respectively while the second wires are connected to a heating plate of the heated clothing. A first end of a protective pad is connected to an edge of the switch body and extended toward a second end thereof to cover a part of the first wire outside the switch body. Thereby the first wires and the edge of the switch body are connected to one part to prevent breakage of the first wires caused by wear between the edge of the switch body and the first wires. Therefore the heated clothing can be washed directly in a washer and convenience in use is improved.

Abstract: A liquid ejection head includes: a first head unit; a second head unit disposed adjacent to the first head unit in a first direction and located on a first side of the first head unit in a second direction; and a heat uniforming unit shared by the first head unit and the second head unit. Each of the first head unit and the second head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. The heat uniforming unit includes a first heat uniforming member disposed on the first side of the first head unit and the second head unit in the second direction. The first heat uniforming member includes a first protrusion located next to the second head unit in the first direction and protruding toward the first head unit.

Abstract: A printhead including a fluid slot area in which a plurality of fluid slots are formed and a temperature sensing member, heating element or temperature sensing resistor including an edge portion and an inner portion. The edge portion extends along at least a part of an edge of the fluid slot area and the inner portion is connected to the edge portion and extends in-between two adjacent fluid slots.

Abstract: A liquid injection device includes a driving signal correction circuit correcting a reference driving signal based on a temperature detected by a temperature sensor. The driving signal correction circuit includes a first correction circuit that corrects injection pulses excluding a liquid drop injection speed-controlling injection pulse when the temperature detected by the temperature sensor is lower than or equal to a predetermined reference temperature, and a second correction circuit that corrects all of the injection pulses when the temperature detected by the temperature sensor is higher than the predetermined reference temperature.

Abstract: A method for printing on sheets in an inkjet process using nozzles includes transporting the sheets on a drum. When the nozzles are actuated by a computer, banding defects are compensated for and the computer factors in or takes into consideration thermal properties of the drum as it actuates the nozzles.

Abstract: A replaceable item for a host device includes a non-volatile memory and logic. The non-volatile memory stores passwords or authentication values, and/or a cryptographic key. The logic permits retrieval of a predetermined maximum number of the passwords from the non-volatile memory to authenticate the replaceable item within the host device. The predetermined maximum number of the passwords is less than the total number of the passwords.

Abstract: A liquid ejecting head comprises a unit head bonded to a communication substrate. Liquid chamber forming portions are formed in the unit case, along a first direction at positions that are separated by a partition wall. Empty liquid chamber portions and supply-side communication paths are formed in the communication substrate. The supply-side communication paths include a common communication path formed in an opposite side with a thin thickness portion left in the surface side of the communication substrate, and individual communication paths. With a surface of the partition wall and a surface of the thin thickness portion bonded together, the empty liquid chamber forming portions and the empty liquid chamber portions communicate with each other so as to define common liquid chambers.

Abstract: An inkjet printing system includes at least one drop ejector array module having an array of drop ejectors disposed on a substrate. A primary temperature sensor is located near a first set of drop ejectors. At least one secondary temperature sensor is located near a second set of drop ejectors. Temperature comparison circuitry on the substrate is configured to compare signals from the primary temperature sensor and the at least one secondary temperature sensor. Pulse modification circuitry on the substrate is electrically connected to the temperature comparison circuitry and is configured to modify an input pulse waveform. The inkjet printing system also includes a controller that is electrically connected to the primary temperature sensor via a temperature output pad and to the pulse modification circuitry via a pulse waveform input pad.

Abstract: A formulation unit for an inkjet printing machine, wherein the inkjet printing machine comprises a printing unit with a printing device and with an ink supply device for supplying ink to the printing device. The formulation unit comprises at least one preparation device for the preparation of ink and at least one storage tank for storing prepared ink.

Abstract: Provided is an ink jet method including cooling an attachment body by a cooling device; ejecting an ultraviolet curable composition from an ejection head to the attachment body having a surface temperature of 45° C. or lower by the cooling device to be attached to the attachment body; and irradiating the ultraviolet curable composition attached to the attachment body with ultraviolet light and curing the ultraviolet curable composition, in which a viscosity of the ultraviolet curable composition attached to the attachment body when being subjected to the irradiating with the ultraviolet light at a surface temperature of the attachment body is 6 mPa·s or greater.

Abstract: Provided is a liquid ejecting head which includes a head main body which has liquid ejection surface through which liquid is ejected, a flexible wiring substrate which is connected to the head main body, and a flow-path member having flow path through which liquid is supplied to the head main body. The flow-path member has an opening portion through which the substrate is inserted. The substrate extends to the flow-path member, with respect to the head main body. The substrate is inclined in a direction directed toward a first surface side of both surfaces of the substrate. In an area on a second surface side of both surfaces of the substrate, the flow path has a portion extending along the head main body.

Abstract: A print head for an ink jet printer includes at least one ink supply channel and at least one nozzle having a nozzle channel and an inflow opening, and ink can be pressed from the ink supply channel through the inflow opening into the nozzle channel and ejected therefrom, wherein the nozzle is arranged in a stationary manner on a side wall of the ink supply channel and in the ink supply channel a ram is provided, which can be moved back and forth between a reversal point that has a minimal distance from the inflow opening of the nozzle and a reversal point that has a maximal distance from the inflow opening of the nozzle, wherein a first limiting device limits the movement of a ram end face to a movement between the reversal points; and a second external device is provided for applying a negative pressure relative to the ambient air pressure to the ink in the ink supply channel.

Abstract: The invention has an object to provide a high-quality print. To achieve the object, an inkjet printing device (100) includes: a transferring roller, a print-heater (6) for heating a medium (20); and an after-heater (7) for heating an ink, wherein the device has a plurality of inkjet heads, and the plurality of inkjet heads discharges inks in different colors and are aligned along a direction of transfer of the medium.

Abstract: Herein, techniques are described for printing an image on a print media by operation of a printhead to eject a print fluid over the print media. In at least some examples, a printhead temperature parameter is acquired, the parameter being indicative of a temperature at the printhead during printing; alignment of the printhead is corrected based on the printhead temperature parameter; printing is performed on the print media via the printhead according to the corrected alignment.

Abstract: A thermal printer includes: a plurality of heat elements that are to be heated by applying an electrical power; a printing controller that applies a first electrical power to heat elements not to be used for printing, the first electrical power depending on the number of heat elements not to be used for printing among the plurality of heat elements; and a thermal head that prints using the plurality of heat elements.

Abstract: A recording apparatus is capable of executing multiple types of different temperature control. A recording head of the recording apparatus has multiple temperature sensors disposed at different positions from each other in the recording head. Each of the multiple types of different temperature control is performed based on representative temperatures acquired using different combinations of the temperature sensors.

Abstract: A supporting section is disposed to confront an ejection surface and supports a recording medium. A first tank is mounted on a first-tank mount section. A liquid conveying section conveys liquid to a liquid ejecting head. A receiving section receives liquid ejected from the liquid ejecting head. A waste-liquid conveying section conveys liquid to the waste-liquid tank. A first casing holds the liquid ejecting head, the first-tank mount section, and the liquid conveying section. A second casing holds the supporting section, the receiving section, the waste-liquid tank, and the waste-liquid conveying section. The first casing is connected with the second casing such that the first casing is movable relative to the second casing. The first casing takes a first position at which the ejection surface confronts the supporting section and a second position at which the ejection surface is farther away from the supporting section than at the first position.

Abstract: A liquid ejecting apparatus includes a liquid ejecting unit which can eject liquid from a nozzle; a supply flow path through which liquid is supplied to the nozzle; a pressure adjusting unit which includes a pressure chamber which can store liquid; a storage chamber at least a part of which is formed by a gas permeable unit, and which stores liquid; a connection flow path which connects a space including a flow path portion from the pressure chamber to the nozzle and the pressure chamber, and the storage chamber; an opening-closing valve which can switch a communicating state between the space and the storage chamber through the connection flow path; and a pressurizing unit which pressurizes the storage chamber when the opening-closing valve is in the closed state.

Abstract: A detachment apparatus having an arched drum pad and a method for fabricating a lightweight, thin liquid crystal display (LCD) device using the same are provided. The detachment apparatus includes: a table to which an object to be processed is loaded; an arched drum pad installed over the table and including O-rings formed on a lower surface thereof and a plurality of vacuum compartments demarcated by the O-rings; and a plurality of driving units configured to control a position of the drum pad. In case of using an auxiliary substrate to perform a process of a thin glass substrate, the auxiliary substrate can be easily separated from a liquid crystal panel in a cell state attached after processes are completed by using the arched drum pad having O-rings and a plurality of vacuum compartments.

Abstract: A printing element substrate is provided that can provide an accurate temperature detection of a printing element substrate and that can suppress the printing element substrate from having a larger size. In order to realize this, sensors are arranged along the heating resistor elements arranged in the printing element substrate so that more diode sensors are arranged at a higher density in a part having a higher temperature change of the printing element substrate during the liquid ejection operation from the ejection openings.

Abstract: An embodiment of this invention is directed to determining a discharge status of liquid discharged from a liquid discharge head capable of accurately determining the discharge status of each nozzle at high speed with a simple arrangement. According to the embodiment, a base includes an electrothermal transducer configured to supply heat to liquid, a first temperature detection element configured to detect the temperature of the electrothermal transducer, and a second temperature detection element configured to detect the temperature of the same electrothermal transducer. In this case, the first and the second temperature detection elements are arranged so that at least part of each of the first and second temperature detection elements is included immediately above or below a region where the electrothermal transducer is arranged in the base.

Abstract: An image forming apparatus includes: a feeding unit that feeds a recording medium; an ejection unit that ejects droplets onto the recording medium fed by the feeding unit; a derivation unit that derives a fluctuation amount range of droplet speed of each droplet commencing with a second droplet relative to droplet speed of a first droplet as a range satisfying set image quality when continuous ejection of droplets are performed by the ejection unit so that the droplets are ejected continuously in different positions on the recording medium in a feeding direction of the recording medium within a range higher than an upper limit value of predetermined image formation speed but lower than limit image formation speed; and a control unit that performs control on the feeding unit and the ejection unit so as to form an image on the recording medium at image formation speed as defined herein.

Abstract: A liquid discharge device includes: a head in which an ejection port to eject liquid as a droplet is formed; a buffer tank which is connected with the head through a supply channel and a collection channel and in which the liquid is housed; a deaeration module which is provided on the side of the supply channel; and a main tank in which the liquid supplied to the buffer tank through the supplement channel is stored, where: the supply channel is connected with a side surface of the buffer tank; the supplement channel penetrates the side surface of the buffer tank and has an exit of the supplement channel in the buffer tank; and the liquid supplied from the supplement channel has speed when the liquid collides with an inner wall surface of the buffer tank facing the exit of the supplement channel.

Abstract: An inkjet ink for improving printhead lifetimes includes: an aqueous-based ink vehicle; a colorant; an anti-kogation additive; and an anti-corrosion additive having at least one acetylenic group, the acetylenic group being absent any tertiary or quaternary ?-carbon atoms.

Abstract: Humidified gas generated by a humidifying unit is supplied to a space between two adjacent print heads from one side of the space, and the humidified gas supplied to the space is discharged from the other side facing the one side across the space.

Abstract: A droplet ejection apparatus includes: a number of droplet ejection units each of which has a nozzle connected to a liquid chamber and an actuator for expelling droplets of a process liquid; a cleaning station; and a control system arranged to control a relative movement of the droplet ejection units and the cleaning station and to immerse the nozzles into a cleaning liquid, wherein a heater is provided for heating the droplet ejection units, and the control system is adapted to activate the heater when the droplet ejection units and the cleaning station are moved or have been moved towards one another, and to deactivate the heater to allow the droplet ejection units to cool down while the nozzles are immersed in the cleaning liquid.

Abstract: An image forming apparatus includes a liquid discharge head, a temperature detector, a memory, and a controller. The temperature detector detects a temperature of the liquid discharge head. The memory stores the temperature of the liquid discharge head detected with the temperature detector. The controller controls a bubble purge operation to purge bubbles in the liquid discharge head. When a current temperature of the liquid discharge head acquired by the temperature detector is higher than a stored temperature stored in the memory and a deviation of the acquired current temperature and the stored temperature is equal to or more than a predefined threshold value, the controller executes control to execute the bubble purge operation, and when the current temperature acquired by the temperature detector is lower than the stored temperature, the controller executes control to update the stored temperature stored and retained in the memory with the acquired current temperature.

Abstract: An inkjet printer including an inkjet head, a head scanning unit, a wave shape generating mechanism to deform a recording medium into a predetermined wave shape, an obtaining device to obtain information concerning a type of the recording medium to be used in a printing operation, a gap information storing device to store gap information related to a gap between an ink discharging surface and the recording medium in association with a predetermined type of the recording medium, the gap information being acquired from a predetermined range in the recording medium, and a correcting device to correct the gap information according to the type of the recording medium obtained by the obtaining device when the type of the recording medium obtained by the obtaining device is different from the predetermined type of the recording medium stored in association with the gap information, is provided.

Abstract: A printing head assembly with integrated purge mechanism is disclosed. The printing head assembly comprises: (a) a liquid dispensing head comprising one or more dispensing nozzles enclosed in a nozzle plate, driven by at least first and second pressures, and (b) a shielding mask including an opening in front of the one or more nozzles, wherein the opening being configured such that when printing liquid is dispensed from the head driven by the first pressure, the liquid being dispensed in pulses through the opening in the shielding mask, and (ii) when purge printing liquid is dispensed from the head driven by the second pressure, the liquid being drawn to a capillary gap formed between the shielding mask and the nozzle plate thereby removing the purge printing liquid from the nearby nozzles.

Abstract: An element substrate includes a discharge port that discharges a liquid, an energy-generating element that generates energy that discharges the liquid from the discharge port, an acting chamber that makes the energy of the energy-generating element act on the liquid, and a heating element including at least two heat generating surfaces that are exposed to the liquid inside the acting chamber, the heating element disposed inside the acting chamber. The element substrate further includes a substrate in which a supply port that supplies liquid to the acting chambers is formed. The heating element may be disposed such that the heat generating surfaces are spaced apart from the substrate.

Abstract: An inkjet printer including an inkjet head, a head scanning unit, a wave shape generating mechanism to deform a recording medium into a predetermined wave shape, an obtaining device to obtain information concerning a type of the recording medium to be used in a printing operation, a gap information storing device to store gap information related to a gap between an ink discharging surface and the recording medium in association with a predetermined type of the recording medium, the gap information being acquired from a predetermined range in the recording medium, and a correcting device to correct the gap information according to the type of the recording medium obtained by the obtaining device when the type of the recording medium obtained by the obtaining device is different from the predetermined type of the recording medium stored in association with the gap information, is provided.

Abstract: An inkjet printer includes an inkjet head including nozzles arranged in a first direction, a head scanning mechanism moving the inkjet head along a second direction perpendicular to the first direction, a feeding mechanism feeding the recording medium along the first direction, and a storage device storing upstream correction information and downstream correction information. A controller performs a first determination process for determining a correction value for a specific scanning operation by using the upstream correction information when an image is printed on an upstream area adjacent to a specific area corresponding to the specific scanning operation and when no image is printed on a downstream area adjacent to the specific area, and a second determination process for determining the correction value by using the downstream correction information when no image is printed on the upstream area and when an image be printed on the downstream area.

Abstract: An example device in accordance with an aspect of the present disclosure includes a controller to adjust print speed intra-page according to a response curve to substantially track a power curve of a power supply. The controller is to maximize print speed based on short-term energy data corresponding to present and future print data and long-term energy data corresponding to past print data, without exceeding a peak power output and a thermal limit of the power supply when printing according to the response curve.

Abstract: A liquid circulation device includes a housing having an outlet and an inlet, a circulation unit configured to convey liquid out of the housing through the outlet and recover liquid into the housing through the inlet, a liquid supplying unit configured to supply liquid into the housing, an air conveying unit configured to convey air into and out of the housing, a level detecting unit configured to detect a level of the liquid in the housing, a pressure sensing unit configured to detect a pressure of the air in the housing, and a control unit configured to control a pressure of the liquid in the housing by controlling the liquid supplying unit or the air conveying unit, based on the level and the pressure of the air.

Abstract: Provided is a liquid ejecting apparatus including an ejecting unit that ejects liquid based on a drive signal; a comparison unit that includes a first comparator and a second comparator, receives an input signal and the drive signal, and outputs a first control signal based on a signal that is obtained by offsetting one of the input signal and the drive signal by a first voltage and a second control signal based on a signal that is obtained by offsetting one of the input signal and the drive signal by a second voltage; and a pair of transistors that is configured by a first transistor which is controlled based on the first control signal and a second transistor which is controlled based on the second control signal, and outputs the drive signal, in which the first voltage and the second voltage are variable.

Abstract: Provided is a liquid ejecting head which includes a head main body which has liquid ejection surface through which liquid is ejected, a flexible wiring substrate which is connected to the head main body, and a flow-path member having flow path through which liquid is supplied to the head main body. The flow-path member has an opening portion through which the substrate is inserted. The substrate extends to the flow-path member, with respect to the head main body. The substrate is inclined in a direction directed toward a first surface side of both surfaces of the substrate. In an area on a second surface side of both surfaces of the substrate, the flow path has a portion extending along the head main body.

Abstract: An ink contains water, a hydrosoluble organic solvent, a colorant, a resin A; and a resin B, wherein the content of the resin B is from 0.5% by weight to less than 10% by weight to the content of the resin A and the resin B has a minimum film-forming temperature at least 30° C. lower than that of the resin A.

Abstract: A liquid ejection head includes an element substrate and a support member. The element substrate includes an ejection orifice row, and a supply port. The support member includes a first flow path for supplying a liquid from a liquid supply source to the supply port. The first flow path includes a plurality of channels for supplying liquid to the supply port. At least one of the plurality of channels has a shape in which a cross section that intersects with a flow direction Y of the liquid increases from an upstream side to a downstream side with respect to the direction in which the liquid is supplied.

Abstract: A method of determining a delay value by an image forming system may include transporting a media along a media transport path by a media transport unit, heating the media by a heating unit, providing a plurality of print passes across the media transport path by a print head assembly, and applying ink to the media to form an image including a plurality of swaths by the print head assembly such that a respective swath is formed on the media corresponding to a respective print pass. The method may also include detecting a temperature of the media by a temperature module to determine whether the detected temperature is outside of a target temperature range, and determining a delay value by a delay determination module in response to a determination that the detected temperature is outside of the target temperature range.

Abstract: Provided is a liquid ejecting apparatus including a first temperature sensor for detecting ink temperature and a second temperature sensor for detecting ambient temperature of a liquid ejecting head, in which a controller for controlling discharge of the ink generates a driving signal including a discharge voltage which is used for, based on a temperature detected by the first temperature sensor, discharging ink droplets through nozzle openings and a fine-oscillation voltage which is used for finely oscillating meniscuses of the ink without discharging the ink droplets and corresponds to the discharge voltage. Furthermore, the controller sets a coefficient in accordance with a temperature difference between the ink temperature and the ambient temperature and controls an energy level of the fine oscillation by applying the fine-oscillation voltage, based on the coefficient.

Abstract: One example provides a printhead including a substrate and a fluidics structure attached to the substrate. The fluidics structure includes actuators for ejecting ink from the printhead. The printhead includes an integrated circuit die attached to the substrate. The integrated circuit die is for driving the actuators. The integrated circuit die is cooled by a coolant contacting the integrated circuit die and flowing through the substrate.

Abstract: An image forming system and methods are disclosed. The methods include detecting an ambient temperature of an image forming system by a first thermal sense resistor disposed in a first printhead to obtain a first detected ambient temperature, detecting the ambient temperature of the image forming system by a second thermal sense resistor disposed in a second printhead to obtain a second detected ambient temperature, and determining a temperature difference between the first detected ambient temperature and the second detected ambient temperature of the image forming system by a temperature variation module.

Abstract: Data transfer is realized to support a high-speed and complex driving control of the driving element. A driving device includes a driving unit configured to supply a driving element with a pulse signal that determines a driving period to drive the driving element, an input unit configured to receive, in synchronization with a trigger signal, a data signal containing first information, second information, a first flag and a second flag that determine a waveform of the pulse signal, a first setting unit configured to set in the driving unit the first information that is input to the input unit, a retaining unit configured to read and retain the second information on the basis of the first flag, and a second setting unit configured to set in the driving unit the second information that is retained in the retaining unit on the basis of the second flag.

Abstract: A liquid ejection apparatus includes a plurality of liquid ejection heads each comprising a channel member having a plurality of ejection openings, a plurality of channels communicated with the plurality of ejection openings, and a heat body, and a plurality of radiators each provided for each of the plurality of liquid ejection heads. The liquid ejection apparatus further includes a plurality of temperature sensors each provided for each of the plurality of liquid ejection heads and outputting a signal indicating a temperature of the channel member, a heat-resistance change device changing a heat resistance between one of the plurality of radiators and one of the plurality of liquid ejection heads corresponding to the one of the plurality of radiators, and a controller controlling the heat-resistance change device based on the signal outputted from at least one of the plurality of temperature sensors.

Abstract: An inkjet printing apparatus includes a current source configured to be able to supply, to a resistance sensor, a constant current of the first constant current value and a constant current of the second constant current value larger than the first constant current value. A change of the resistance value of the resistance sensor is detected by switching the value of the constant current to be supplied to the resistance sensor between the first constant current value and the second constant current value a predetermined time after driving a heater to discharge an ink droplet.

Abstract: A device includes a first element substrate and a second element substrate for driving a driving element; a first signal input unit connected to an input terminal of the first element substrate; a second signal input unit connected to an input terminal of the second element substrate; and a signal output unit. Each of the first and second element substrates includes a driving element, a first signal generation unit configured to output a first signal, a second signal generation unit configured to output a second signal, an input terminal, an output terminal, and a selection unit configured to receive a signal from the first and the second signal generation units, select one of a state of the first signal, a state of the second signal, and a high-impedance state on the basis of the selection signal input from the input terminal, and output the state to the output terminal.

Abstract: A liquid ejecting apparatus and a method for detecting a medium edge position are provided wherein the edge position of the medium can be comparatively more accurately detected even when the sensitivity of an optical sensor has changed due to fouling or the like.

Abstract: A temperature control assembly controls the temperature of parts of a printing machine. A plurality of assembly-side sub-circuits, the temperature of which is to be individually controlled, each comprises a temperature control fluid outlet and a temperature control fluid inlet. An external temperature control sub-circuit, can be connected to each assembly-side sub-circuit to form a respective temperature control circuit. The assembly-side sub-circuits are coupled to a common feed line, which conducts temperature control fluid, in a thermal and/or fluidic manner on the feed side to control the temperature of the assembly-side sub-circuits and to a common return line on the return side. The feed line is connected to a fluid store, which provides temperature control fluid to supply the feed line. The temperature control assembly comprises the common feed line, the fluid store, and an assembly which controls the temperature of the temperature control fluid of the fluid store.